Variety traits
Brassica napus L.
The complex ability of winter rapeseed to withstand sub-zero temperatures, thaws, and early spring stresses. It is determined by the condition of the root collar and sugar accumulation during the rosette stage.
In the reference 34 varieties crop Rapeseed, where this is mentioned in the description.
For winter rapeseed, the stage of entering winter is critical: optimal plant development is considered to be a rosette with 6–8 leaves, a root collar diameter of 8–12 mm, and a root length of at least 20 cm. At the same time, overgrown plants with more than 10 leaves and an elevated growing point lose frost resistance and can die at -8…-10 °C, whereas hardened plants can withstand temperatures down to -16…-20 °C, and under snow cover — down to -35 °C.
Winter hardiness assessment is conducted by calculating plant survival rates in spring or by using the monolith method with subsequent regrowth in controlled conditions. High crop survival is considered to be 85–95%, medium — 70–75%, and low — less than 65%. The main risks for reduced indicators are errors in agronomic practices, such as failure to meet sowing dates, excessive nitrogen nutrition in autumn, and pest damage that hinders the accumulation of reserve substances.
General information about the subject — on the page Winter hardiness.
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.
Brassica napus L. · Rapeseed
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG
Brassica napus L. · Rapeseed
Nelly Guguin, Jean-Pierre Despeghel,
Brassica napus L. · Rapeseed
LIMAGRAIN EUROPE
Brassica napus L. · Rapeseed
DEUTSCHE SAATVEREDELUNG AG
Brassica napus L. · Rapeseed
Hauska Detlef, Busch Heinrich,
Brassica napus L. · Rapeseed
Saatzucht Donau Ges.m.b.H.& Co KG
Brassica napus L. · Rapeseed
MAS SEEDS
Brassica napus L. · Rapeseed
Euralis Semences FR
Brassica napus L. · Rapeseed
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG
Brassica napus L. · Rapeseed
P.H.PETERSEN SAATZUCHT LUNDSGAARD
Brassica napus L. · Rapeseed
LIMAGRAIN EUROPE
Brassica napus L. · Rapeseed
PIONEER OVERSEAS CORPORATION
Brassica napus L. · Rapeseed
Tomasz Pakos, Jean-Pierre Despigel, Nelly Guguin,
Brassica napus L. · Rapeseed
Limagrain UK
Brassica napus L. · Rapeseed
Lidea France SAS, Lescar FR
Brassica napus L. · Rapeseed
Raps GbR Saatzucht Lundsgaard
Brassica napus L. · Rapeseed
MONSANTO TECHNOLOGY
Brassica napus L. · Rapeseed
P.H.PETERSEN SAATZUCHT LUNDSGAARD
Brassica napus L. · Rapeseed
Euralis Semences
Brassica napus L. · Rapeseed
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG
Brassica napus L. · Rapeseed
MONSANTO TECHNOLOGY
Brassica napus L. · Rapeseed
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG
Brassica napus L. · Rapeseed
PARSONS SEEDS LTD
Brassica napus L. · Rapeseed
MONSANTO TECHNOLOGY